Athlon PRO 3045B vs Core i5-12400F

CPU

GPU

Athlon PRO 3045B

2 Cores4 Thrd15 WWMax: 3.2 GHz2021

Similar parts

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Core i5-12400F

6 Cores12 Thrd65 WWMax: 4.4 GHz2022

Core family

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Athlon PRO 3045B vs Core i5-12400F Performance Spectrum

Athlon PRO 3045B

2 / 4

2,770

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core i5-12400F

6 / 12

19,532

+605.1%

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Athlon PRO 3045B vs Core i5-12400F FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Athlon PRO 3045B vs Core i5-12400F: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Athlon PRO 3045B

2021

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅Integrated graphics onboard with AMD Radeon Vega 3, while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 50 shared CPU benchmark tests.
❌Lower PassMark (2,770 vs 19,532).
❌Smaller total L3 cache (4 MB vs 18 MB).
❌Lower PassMark per dollar, at 6.5 vs 112.3 PassMark/$ ($426 MSRP vs $174 MSRP).
❌Older platform position on FP5 with DDR4, while Core i5-12400F moves to LGA1700 and DDR5.

Core i5-12400F

2022

Why buy it

✅Better for gaming: +237.7% higher average FPS across 50 shared CPU benchmark tests.
✅+350% larger total L3 cache (18 MB vs 4 MB).
✅Costs $252 less on MSRP ($174 MSRP vs $426 MSRP).
✅Delivers 1626.3% more PassMark for each dollar spent, at 112.3 vs 6.5 PassMark/$ ($174 MSRP vs $426 MSRP).
✅Newer platform on LGA1700 with DDR5 support instead of FP5 and DDR4.

Trade-offs

❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Athlon PRO 3045B can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-12400F better than Athlon PRO 3045B?

Yes. Core i5-12400F is the better all-around CPU here. It gives you a 237.7% average FPS lead across 50 shared CPU game tests in our data, 605.1% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-12400F is the better pick. According to our tests, it delivers 237.7% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i5-12400F is the stronger fit. You are getting 605.1% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 350% larger total L3 cache (18 MB vs 4 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Core i5-12400F is the better buy right now. Core i5-12400F comes in $252 cheaper on MSRP at $174 MSRP versus $426 MSRP, and it still gives you a 237.7% average FPS lead across 50 shared CPU game tests in our data. It is also 1626.3% better value on MSRP (112.3 vs 6.5 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Core i5-12400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2021), a healthier platform with LGA1700 and DDR5 instead of FP5, 350% larger total L3 cache (18 MB vs 4 MB), and more multi-core headroom with 6 cores / 12 threads instead of 2/4. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Athlon PRO 3045B vs Core i5-12400F Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Athlon PRO 3045B

The Athlon PRO 3045B is manufactured by AMD. It was released in 2009-01-01. It is based on the Dali (2020−2021) architecture. It features 2 cores and 4 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 14 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 2,770 points. Launch price was $149.

Core i5-12400F

The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.

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Processing Power

The Athlon PRO 3045B packs 2 cores / 4 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Core i5-12400F has 4 more cores. Boost clocks reach 3.2 GHz on the Athlon PRO 3045B versus 4.4 GHz on the Core i5-12400F — a 31.6% clock advantage for the Core i5-12400F (base: 2.3 GHz vs 2.5 GHz). The Athlon PRO 3045B uses the Dali (2020−2021) architecture (14 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Athlon PRO 3045B scores 2,770 against the Core i5-12400F's 19,532 — a 150.3% lead for the Core i5-12400F. L3 cache: 4 MB (total) on the Athlon PRO 3045B vs 18 MB (total) on the Core i5-12400F.

Feature	Athlon PRO 3045B	Core i5-12400F
Cores / Threads	2 / 4	6 / 12+200%
Boost Clock	3.2 GHz	4.4 GHz+38%
Base Clock	2.3 GHz	2.5 GHz+9%
L3 Cache	4 MB (total)	18 MB (total)+350%
L2 Cache	512 kB (per core)	1.25 MB (per core)+150%
Process	14 nm	Intel 7 nm-50%
Architecture	Dali (2020−2021)	Alder Lake-S (2022)
PassMark	2,770	19,532+605%
Cinebench R23 Multi	—	12,380
Geekbench 6 Single	—	1,700
Geekbench 6 Multi	—	657

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Memory & Platform

The Athlon PRO 3045B uses the FP5 socket (PCIe 4.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Athlon PRO 3045B versus DDR5-4800, DDR4-3200 on the Core i5-12400F — the Core i5-12400F supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-12400F supports up to 128 GB of RAM compared to 32 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 8 (Athlon PRO 3045B) vs 20 (Core i5-12400F) — the Core i5-12400F offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FP5 (Athlon PRO 3045B) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F).

Feature	Athlon PRO 3045B	Core i5-12400F
Socket	FP5	LGA1700
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-2400	DDR5-4800, DDR4-3200+100%
Max RAM Capacity	32 GB	128 GB+300%
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	8	20+150%

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Advanced Features

Virtualization: not specified (Athlon PRO 3045B) / VT-x, VT-d, EPT (Core i5-12400F). The Athlon PRO 3045B includes integrated graphics (AMD Radeon Vega 3), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

Feature	Athlon PRO 3045B	Core i5-12400F
Integrated GPU	Yes	No
IGPU Model	AMD Radeon Vega 3	—
Virtualization	—	VT-x, VT-d, EPT
Target Use	—	Gaming Performance/Value

💰

Value Analysis

At launch, the Athlon PRO 3045B was priced at $426, while the Core i5-12400F came in at $174. On launch pricing ($426 vs $174), Core i5-12400F was $252 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon PRO 3045B delivers 6.5 pts/$ vs 112.3 pts/$ for the Core i5-12400F — making the Core i5-12400F the 178.1% better value option.

Feature	Athlon PRO 3045B	Core i5-12400F
MSRP	$426	$174-59%
Performance per Dollar	6.5	112.3+1628%
Release Date	2021	2022

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